Improvement in grinding-mills



B. KENOYER.

Grinding Mill,

Patented Sept. i, i863 c ,lllilliiikii NA PETERS. Phnm-Liinagmpher.wnshmgwn, 0,6,

n UNITED STATES PATENT Einen.

BENJAMIN KENOYER, OF EDINA, MISSOURI.

IMPROVEMENT IN GPllNDlNG-MILLS. A

Specication forming part of Letters Patent No. 39,735, dated Septemberl, 1863.

To all whom/ it may concern:

Be it known that I, BENJAMIN KENOYER, of Edina, in the county of Knoxand State oi' Missouri, have invented a new and Improved Grinding-Mill;and I do hereby declare that the following is a full, clear, and exactdescription ofthe same, reference being had to the accompanyingdrawings, making a part of this specification, in which- Figure l is avertical central section of my invention, taken in the line a: x, Fig.2; Fig. 2, a plan or top view of the same. l

Similar letters of reference indicate corresponding parts in the twofigures.

This invention consists in providing the stones with drivers, arrangedor applied in such a manner as to admit of the stones being adjusted atany time when required to keep them at right angles with their spindles.

' To enable those skilled in the art to fully understand and constructmy invention, l will proceed to describe it.

A represents a frame, which may be conlstructed in any proper manner tosupport the working parts of the machine; and B is a horizontaldriving-shaft, which is placed in said framing, and has a bevel-toothedwheel,G, on its inner end. This wheel C gears into two similarwheels,DD, one of which, D, is at the upper part of the wheel C and theother, D at its lower part, as shown clearly in Fig. 1. The lower wheel,B', is placed on -the lower part of a spindle, E, the lower end of whichis stepped in a block, F, said block being tted in a box, G, which issecured to a crossbar, a, in the lower part of the frame A. Through thebox G set-screws b pass horizontally and bear against the sides of theblock F, which is somewhat smaller in diameter than the interior of thebox G, in order to admit of the lower part of the spindle E .beingadjusted laterally. The upper end ot' the spindle F is tted in a similarblock, H, which is placed in a box, I, on the top of the frame A, saidbox I having set-screws c passing horizontally through it, and whichbear against the block H. By this means the upper part ofthe spindle Eis rendered capable of being adjusted laterally. Four set-screws maypass through each box G I, the latter, as well as the blocks F H, beingof square or polygonal form. The upper block and box are represented ofpol ygonal form in Fig. 2.

J represents a tubular spindle, through which the spindle E passesloosely, so that both spindles may rotate independently of each other.The upper wheel, D, is tted on the tubular spindle J, and the lower endof the latter rests upon friction-rollers d, which are fitted in abridge-tree, K, in the frame A, and arranged so as to be capable ofbeingadjusted by a screw, L, as usual. The tubular spindle J passes throughtwo blocks, M M, which are fitted in boxes N N, secured on cross-bars ee in the frame A, and having setscrews f passing through them, to admitof the lateral adjustment of the tubular spindle. (See Fig. l.)

O represents the upper stone, which rests upon the arms g of a driver,P. This driver has three arms, g, and it rests upon a shoulder, la, onthe spindle E, the portion of the latter which passes through the driverbeing square, and having a screw-thread cut upon it to receive a nut,z', which is screwed down upon the driver and holds the same firmly onthe spindle E.

Between the arms g ofthe driver P and the under surface of the stone Othere are interposed strips j of india-rubber, and vertically throughsaid stone, the rubber j and the arms g, screws k pass, one through eacharm. These screws k perform two functions, to wit, they secure thedriver firmly to the stone 0, and they admit of the latter beingadjusted at any time when necessary, so as to bring said stone at rightangles with its spindle E, the stops j of india-rubber admitting ofthestone being thus moved or adjusted under the action of the screws 7c.

Q is the lower stone, on which a driver, R, is fitted. This driver isprovided with three arms, l, and is constructed precisely like the.

driver l? of the s'tone O. The driver R has its arms Z resting upon theupper surface of the stone (Land screws m pass through these arms fromthe under side of the stone, strips of india-rubber n being interposedbetween the arms l and the stone. j The driver .R rests upon a shouldero on the tubular spindle J, said driver being connected to said spindlein any proper way. The two stones O Q are encompassed by a curb, S,which may be arranged in any proper way, and provided With adischarge-spout, T.

From the above description it will be seen that the two stones arerotated in opposite di- O Q by providing the former with arms g l',

rections, and that either stone may be always kept at right angles withits spindles by adjusting the screws which pass through the arms oftheir drivers.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

Connecting the drivers P R to the stones with india-rubber strips j ninterposed between them and the stones, and having screws k m passthrough the stones, rubber strips, and arms, substantially as hereindescribed. BENJAMIN KENOYER. Witnesses:

THoHAs M. PowEL, JOHN HAR'rsocK.

